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# Authors:
# Nathaniel McCallum <npmccallum@redhat.com>
#
# Copyright (C) 2013 Red Hat
# see file 'COPYING' for use and warranty information
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
from __future__ import print_function
import sys
from ipaclient.frontend import MethodOverride
from ipalib import api, Str, Password, _
from ipalib.messages import add_message, ResultFormattingError
from ipalib.plugable import Registry
from ipalib.frontend import Local
from ipaplatform.paths import paths
from ipapython.dn import DN
from ipapython.nsslib import NSSConnection
from ipapython.version import API_VERSION
import locale
import qrcode
import six
from six import StringIO
from six.moves import urllib
if six.PY3:
unicode = str
register = Registry()
@register(override=True)
class otptoken_add(MethodOverride):
def _get_qrcode(self, output, uri, version):
# Print QR code to terminal if specified
qr_output = StringIO()
qr = qrcode.QRCode()
qr.add_data(uri)
qr.make()
qr.print_ascii(out=qr_output, tty=False)
encoding = getattr(sys.stdout, 'encoding', None)
if encoding is None:
encoding = locale.getpreferredencoding(False)
try:
qr_code = qr_output.getvalue().encode(encoding)
except UnicodeError:
add_message(
version,
output,
message=ResultFormattingError(
message=_("Unable to display QR code using the configured "
"output encoding. Please use the token URI to "
"configure your OTP device")
)
)
return None
if sys.stdout.isatty():
output_width = self.api.Backend.textui.get_tty_width()
qr_code_width = len(qr_code.splitlines()[0])
if qr_code_width > output_width:
add_message(
version,
output,
message=ResultFormattingError(
message=_(
"QR code width is greater than that of the output "
"tty. Please resize your terminal.")
)
)
return qr
def output_for_cli(self, textui, output, *args, **options):
# copy-pasted from ipalib/Frontend.__do_call()
# because option handling is broken on client-side
if 'version' in options:
pass
elif self.api.env.skip_version_check:
options['version'] = u'2.0'
else:
options['version'] = API_VERSION
uri = output['result'].get('uri', None)
if uri is not None and not options.get('no_qrcode', False):
qr = self._get_qrcode(output, uri, options['version'])
else:
qr = None
rv = super(otptoken_add, self).output_for_cli(
textui, output, *args, **options)
if qr is not None:
print("\n")
qr.print_ascii(tty=sys.stdout.isatty())
print("\n")
return rv
class HTTPSHandler(urllib.request.HTTPSHandler):
"Opens SSL HTTPS connections that perform hostname validation."
def __init__(self, **kwargs):
self.__kwargs = kwargs
# Can't use super() because the parent is an old-style class.
urllib.request.HTTPSHandler.__init__(self)
def __inner(self, host, **kwargs):
tmp = self.__kwargs.copy()
tmp.update(kwargs)
# NSSConnection doesn't support timeout argument
tmp.pop('timeout', None)
return NSSConnection(host, **tmp)
def https_open(self, req):
# pylint: disable=no-member
return self.do_open(self.__inner, req)
@register()
class otptoken_sync(Local):
__doc__ = _('Synchronize an OTP token.')
header = 'X-IPA-TokenSync-Result'
takes_options = (
Str('user', label=_('User ID')),
Password('password', label=_('Password'), confirm=False),
Password('first_code', label=_('First Code'), confirm=False),
Password('second_code', label=_('Second Code'), confirm=False),
)
takes_args = (
Str('token?', label=_('Token ID')),
)
def forward(self, *args, **kwargs):
status = {'result': {self.header: 'unknown'}}
# Get the sync URI.
segments = list(urllib.parse.urlparse(self.api.env.xmlrpc_uri))
assert segments[0] == 'https' # Ensure encryption.
segments[2] = segments[2].replace('/xml', '/session/sync_token')
# urlunparse *can* take one argument
# pylint: disable=too-many-function-args
sync_uri = urllib.parse.urlunparse(segments)
# Prepare the query.
query = {k: v for k, v in kwargs.items()
if k in {x.name for x in self.takes_options}}
if args and args[0] is not None:
obj = self.api.Object.otptoken
query['token'] = DN((obj.primary_key.name, args[0]),
obj.container_dn, self.api.env.basedn)
query = urllib.parse.urlencode(query)
# Sync the token.
# pylint: disable=E1101
handler = HTTPSHandler(dbdir=paths.IPA_NSSDB_DIR,
tls_version_min=api.env.tls_version_min,
tls_version_max=api.env.tls_version_max)
rsp = urllib.request.build_opener(handler).open(sync_uri, query)
if rsp.getcode() == 200:
status['result'][self.header] = rsp.info().get(self.header, 'unknown')
rsp.close()
return status
def output_for_cli(self, textui, result, *keys, **options):
textui.print_plain({
'ok': 'Token synchronized.',
'error': 'Error contacting server!',
'invalid-credentials': 'Invalid Credentials!',
}.get(result['result'][self.header], 'Unknown Error!'))
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